I'm kind of late to this but for some context - bonzini knows me from a long time ago when I was still a genetics student and the joke here is that given where I am now in my career I still get to occasionally answer questions based on that background
Genetics is complicated.
If you really want to learn about this, all you need to do is search.
https://www.bbc.com/future/article/20140905-the-women-with-s...